One million new sexually transmitted diseases recorded every day, warns World Health Organization

An international aid worker hands out condoms
An international aid worker hands out condoms
By Shafi Musaddique
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A 'wake up call' is urgently needed among 15-49-year-olds, says health agency.


A “wake up call” among people aged 15-49 years old is urgently needed with a million new sexually transmitted infections (STIs) occur every day across the world, says the World Health Organization (WHO).

According to a new report released by the health agency, 127 million new cases of chlamydia were recorded and 87 million cases of gonorrhoea in 2016.

Syphilis (6.3 million) and trichomoniasis (156 million) are also considered part of the four curable STIs the health agency says remain a “persistent and endemic health threat worldwide”.

“We’re seeing a concerning lack of progress in stopping the spread of sexually transmitted infections worldwide,” said Dr Peter Salama, Executive Director for Universal Health Coverage and the Life-Course at WHO.

“This is a wake-up call for a concerted effort to ensure everyone, everywhere can access the services they need to prevent and treat these debilitating diseases.”

Low-income countries tend to have the highest rates of gonorrhoea, trichomoniasis and syphilis. Chlamydia tended to be more prevalent in upper-middle income countries.

Africa had the highest prevalence for chlamydia in men, gonorrhoea in both women and men, trichomoniasis in women and syphilis in both men and women. The Americas (North and South America) had the highest prevalence of chlamydia in women and of trichomoniasis in men.

Island nations dotted in the Pacific Ocean also recorded extremely high rates of all four sexually transmitted infections.

Since the last published data for 2012, there has been no substantive decline in either the rates of new or existing infections.

Global chalmydia rates per 1000 people in World Health Organization regions

On average, approximately 1 in 25 people globally have at least one of these STIs, according to the latest figures, with some experiencing multiple infections at the same time.

STIs are spread through unprotected sex, while some, such as chlamydia, gonorrhoea, and syphilis, can be transmitted during pregnancy and childbirth.

WHO has warned that a global shortage in benzathine penicillin has made it difficult to treat syphilis, while increasing resistance to gonorrhoea treatments could lead to the disease being “impossible to treat”.

Use of condoms and improved access to sexual health testing are both crucial in tackling the spread of STIs, the WHO says.

“People with sexually transmitted infections often experience stigma, stereotyping, vulnerability, shame and gender-based violence,” said the report.

WHO has set a target of 90% reductions in the incidence of gonorrhoea and of syphilis, globally, by 2030.

Key terms explained

  • Trichomoniasis is caused by a parasite that can cause genital soreness, swelling and pain during urination.
  • Syphilis is a bacterial infection that's usually caught by having sex with someone who's infected. Symptoms include tiredness, sores, ulcers, swollen glands and red rashes.
  • Chlamydia is passed on through unprotected sex and common among young adults. Symptoms include pain during urination, genital swelling and unusual discharge.
  • Gonorrhoea is a sexually transmitted infection (STI) caused by bacteria found in both male and female discharge. It can be passed on through unprotected sex. Without treatment, gonorrhoea can cause permanent blindness in a newborn baby.
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